Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 14

50CORON-Clear CCD

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Description

The 50CORON imaging mode is useful for imaging of faint targets next to bright ones. The STIS CCD optics include a Lyot stop, which suppresses the wings of the PSF. See CCD Clear Imaging-50CCD for sensitivities, throughputs, and encircled energies. See Section 12.10 for the PSF and for a discussion of coronagraphic imaging. A diagram showing the layout of the 50CORON aperture and the wedge positions, can be seen in Figure 12.8

Recommended Uses

Recommended for broad-band coronagraphic imaging. Observers considering use of this mode may also want to investigate ACS coronagraphic imaging.

Pivot (Å)	FWHM (Å)	AB mag zeropoint	Speak	B	R80 (arcsec)	Flux in central pixel
5751.9	4410.3	26.386		4898.9	0.16	14%

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